Hd display Raspberry pi 3, 7,000mah

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iSP
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Re: Hd display Raspberry pi 3, 7,000mah

Post by iSP » Sun Jan 22, 2017 1:03 pm

I've ordered one since it's just 25$ shipping included (!) :P
At least I'll be able to confirm if it works with my case or mod it a bit.
Will be my 3rd screen, already have the 320*240 and 640*480 one...

Another note: if the touch part works through a screen surround (does anyone know?, I don't think so) it might actually be nice for adventure games :D (Monkey Island anyone? Return of the tentacle? :D)

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Re: Hd display Raspberry pi 3, 7,000mah

Post by Helder » Sun Jan 22, 2017 1:49 pm

BenOfTheNorth wrote:
Helder wrote:I was looking into this yesterday and couldn't get any info on the screen. Do you have a link and is it really HDMI like he says in the video? if so there goes all our video problems.
The specific one I bought was this: https://world.taobao.com/item/541924387 ... ta551cf5e0

Delivery seems too cheap so I'm waiting on the seller asking for more there, but the screen costs peanuts. Looks like true HDMI and also comes with that little adapter he used.

The fit is questionable as noted above, but with resolution adjustment it might work well. Worth a try at the price though because if it works it'll be fantastic (assuming it all fits :D )
Can you buy directly or do you need a 3rd party buyer for that site?
This is an ebay listing of maybe the same screen:
http://www.ebay.com/itm/351913962824
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Re: Hd display Raspberry pi 3, 7,000mah

Post by derebbe » Sun Jan 22, 2017 1:54 pm

Helder wrote: This is an ebay listing of maybe the same screen:
http://www.ebay.com/itm/351913962824
I bought exactly this screen... the PCB does not fit into the DMG shell without modifying it, it must be shorten by ~1mm. On one side of the PCB should be plenty of space to cut 1mm off...

But since we have to use HDMI audio if HDMI is used, we need to find a flexible tiny 3,5cm cable to grab sound from the jack which is attached to the screen... Couldn't find a nice cable so far... Another solution could be to desolder the jack and solder wires on it...

The screen itself is glued with some "thick elastic tape" and connected with two ribbon cables to the PCB: One for the digitizer and one for the lcd... at least the bigger lcd-ribbon-cable can be safely detached from the PCB...

Here the measurements:

screen width: 83mm
screen height: 55mm

PCB width: 86,3mm
PCB height: 56,2mm

height of screen+PCB+HDMI connector: 13,7mm

the PCB could be shorted by ~12mm, as far I can see this area has no traces or electrical components:
Image
Last edited by derebbe on Sun Jan 22, 2017 2:38 pm, edited 5 times in total.

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Re: Hd display Raspberry pi 3, 7,000mah

Post by BenOfTheNorth » Sun Jan 22, 2017 2:03 pm

I bought directly, although using google translate on Chrome it still took quite a while to get there! Ebay looks a lot simpler. I'm also still waiting to see if I get rebuffed for extra shipping fees... if it turns out to be hassle I'll cancel and order through eBay (I wish I'd checked there first, didn't think).

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Re: Hd display Raspberry pi 3, 7,000mah

Post by BuToNz » Sun Jan 22, 2017 2:24 pm

Helder wrote: This is an ebay listing of maybe the same screen:
http://www.ebay.com/itm/351913962824
No shipping to the UK :(

Hope this works out well though as I really think the BW screen is the one thing which is of lower quality for the project now.

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Re: Hd display Raspberry pi 3, 7,000mah

Post by BenOfTheNorth » Sun Jan 22, 2017 2:54 pm

BuToNz wrote:No shipping to the UK :(
This one does though: http://www.ebay.co.uk/itm/3-5-LCD-HDMI- ... Swj85YNWVP

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Re: Hd display Raspberry pi 3, 7,000mah

Post by BuToNz » Sun Jan 22, 2017 3:04 pm

BenOfTheNorth wrote:
BuToNz wrote:No shipping to the UK :(
This one does though: http://www.ebay.co.uk/itm/3-5-LCD-HDMI- ... Swj85YNWVP
Thanks! I think I'll see how you guys get on though :lol:

You can see in the video that he has cut the PCB up to the headphone jack.

Cheaper here and with clear case: http://www.ebay.co.uk/itm/381919096019? ... EBIDX%3AIT

:EDIT: I've ordered it :roll:

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Re: Hd display Raspberry pi 3, 7,000mah

Post by kamon » Sun Jan 22, 2017 6:11 pm

Would this screen work with the Pi Zero?

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Re: Hd display Raspberry pi 3, 7,000mah

Post by derebbe » Mon Jan 23, 2017 12:35 am

I made some more pictures:

The digitizer ribbon cable is soldered to the PCB:
Image

Next I desoldered all the stuff which we probably don't need:
Image

Everything still works:
Image

Screen fits perfectly into the case:
Image

Here a picture of my stripped down pi2 with the flat HDMI cable I used:
Image

Next I will cut off 10mm from the screen PCB and from the Pi2 so I can turn it by 90º in the case...
Looks promising so far...
kamon wrote:Would this screen work with the Pi Zero?
Yes it does! You just need a mini-HDMI <> HDMI cable... One additional advantage will be, that you won't need PWM sound...

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Re: Hd display Raspberry pi 3, 7,000mah

Post by BuToNz » Mon Jan 23, 2017 1:07 am

Looks great! Don't suppose you could snap some pictures it running a few games when you are ready?

Just so we can get an idea of how much better it is. :D

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